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Installation Guide

ManualsBrandsSimpson Strong-Tie ManualsBuilders Hardware7 in. x 9 in. Retrofit Foundation Plate
12
New Plate Designs Offer
Higher Strength for Greater
Spacing Options
When retrofitting an older home to secure it to the
foundation, space constraints can make vertical access
a challenge. Two next-generation foundation plates from
Simpson Strong-Tie are ideal solutions for attaching first-floor
framing to the foundation to prevent a home from sliding off
in an earthquake. The URFP and FRFP foundation plates
are specifically designed for locations with limited vertical
clearance, in basement areas or crawl spaces, where floors
are supported directly on the mudsill or short cripple wall.
10⅝"
6¼
"
URFP
U.S. Patent Pending
URFP Installed on a Foundation
URFP Universal Retrofit
Foundation Plate
The URFP is the new improved version of the versatile UFP
plate. Its new, stiffer design offers higher strength, making it
a one-for-one replacement for a ½"- or
"-diameter anchor
bolt. The innovative design also allows it to suit a variety of
foundation types as well as mudsill positions — from a 2 ½"
setback from the inside edge of the foundation to a ½"
overhang (and everything in between).
Material: URFP – 14 gauge
Finish: Galvanized. May be
ordered HDG; contact
Simpson Strong-Tie.
Installation
• Use all specified fasteners.
• Loads are based on test
results using Strong-Drive
®
¼
" x 3" SDS Heavy-Duty
Connector screws, which
are supplied with the URFP.
• Lag screws will not achieve
published loads.
Codes: ICC-ES ESR-2616
URFP Installed
½" max.
2½" max.
20° max.
URFP Allowable Loads
Model No.
Fasteners
Allowable Load
DF/SP (160)
Anchor Bolt
Sill Plate
Qty. Dia. F
1
URFP 2
½
" (5) SDS
¼
" x 3 " 1,530
1. Allowable loads have been increased for wind or earthquake loading with no
further increase allowed; reduce where other load durations apply.
2. F
1
is load parallel-to-plate.
3. Each anchor bolt requires a standard cut washer. The Simpson Strong-Tie
Titen HD
®
heavy-duty screw anchor does not require a washer.
4. Nominal embedment depth for post-installed anchors must be a minimum
of 4" and is for use with SET-XP
®
or AT-XP
®
structural anchoring adhesives
or Titen HD screw anchors.
5. For redwood mudsills, reduce F
1
to 1,180 lb.
6. For installation on SPF/HF sill plates, use 0.86 x DF/SF allowable load.
7. For additional retrofit information, see F-SEISRETRGD.
Prescriptive Spacing for URFP
to Replace Sill Anchor Bolts
Number of
Building Stories
Anchor Bolt
Diameter
Anchor Bolt
O.C. Spacing
Alternate
URFP
O.C.
Spacing
One story
½
" 6' 6'
" 6' 6'
Two stories
½
" 4' 4'
" 6' 6'
Three stories
" 4' 4'
1. “Prescriptive” denotes spacing requirements per the IEBC and
designs per the IRC and conventional provisions of the IBC.
2. For design in accordance with the IEBC Chapter A3, the URFP
may be used as a one-for-one replacement for the alternative
connections shown in Figures A3-4A, A3-4B and A3-4C.
3. Spacing is based on the parallel-to-plate load direction.
4.
" anchor bolt required for Seismic Design Category E.
Next-Generation Solutions
for Foundation Retrofits
© 2017 Simpson Strong-Tie Company Inc. F-C-URFP-FRFP17

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